International clothing sizes are useful starting points, not guarantees. This guide explains how to convert US, UK, EU, AU, and selected Asian sizing systems, measure yourself accurately, and confirm the brand size chart before ordering tops, bottoms, dresses, jackets, hoodies, or shoes.
Overview
A clothing size conversion chart translates labels between regional systems, but it does not make every brand’s garments equivalent. A US medium, UK medium, and EU size 40 may represent different body measurements depending on the brand, garment category, fabric, and intended fit. Some labels use numbers, some use letters, and some use body measurements in centimeters or inches.
Use conversion charts to narrow your options, then use the product page’s own brand size chart as the final reference. This is especially important for denim, tailored jackets, fitted dresses, footwear, compression garments, and unisex streetwear. If a brand offers garment measurements as well as body measurements, compare both: body measurements describe the wearer, while garment measurements describe the finished item.
The most reliable process is simple: measure the relevant part of your body, identify the brand’s measurement system, compare your measurements with the chart, and choose based on the garment’s intended fit. When your measurements fall between sizes, use the construction of the item and the return terms to make the decision.
Indicative women’s size conversions
The table below is a general reference for common alpha and numeric labels. It is not a substitute for a brand-specific chart.
| US | UK | EU | Alpha label |
|---|---|---|---|
| 2 | 6 | 34 | XS |
| 4–6 | 8–10 | 36–38 | S |
| 8–10 | 12–14 | 40–42 | M |
| 12–14 | 16–18 | 44–46 | L |
| 16–18 | 20–22 | 48–50 | XL |
These ranges overlap because alpha labels are broad. Australian labels often resemble UK numeric sizing, but the brand’s own chart should decide. Plus, petite, and tall ranges may use similar widths with different proportions, rises, sleeve lengths, or garment lengths.
Indicative men’s size conversions
| US/UK alpha | EU jacket or top reference | Typical use |
|---|---|---|
| XS | 44 | Smaller tops and jackets |
| S | 46 | Small tops and jackets |
| M | 48–50 | Medium tops and jackets |
| L | 52–54 | Large tops and jackets |
| XL | 56–58 | Extra-large tops and jackets |
Men’s trousers may be labeled by waist and inseam, such as 32/30, while tailored garments may use a single EU number. Check whether the first number describes inches, centimeters, or a regional garment size before comparing it with another system.
Step-by-step workflow
- Identify the garment category. Start with the item you are buying. A hoodie fit guide is not interchangeable with a jacket sizing guide, and a shoe chart cannot be converted from a clothing chart. Note whether the item is slim, regular, relaxed, oversized, stretch, lined, or structured.
- Measure your body, not your usual label. Wear light clothing and keep the tape level without pulling it tight. Record bust or chest, natural waist, full hip, shoulder width if requested, sleeve length, inseam, and foot length as relevant. Measure twice if a result seems unusual.
- Check the measurement unit. Convert inches to centimeters or centimeters to inches before comparing numbers. Do not assume that an EU number or an Asian size label uses the same convention as a US or UK label. Asian sizing can vary considerably by market and brand, so a product-specific chart is essential.
- Compare every relevant measurement. For a dress, compare bust, waist, and hip. For trousers, compare waist, hip, rise, and inseam. For a jacket, check chest, shoulder, sleeve, and intended layering space. Choose the size that accommodates the most important measurement for the garment’s construction.
- Account for ease and fabric. A woven non-stretch dress generally needs more room than a stretch knit. A winter coat should allow for the layers you expect to wear underneath. Oversized streetwear may be intentionally large, while a slim shirt may be designed to sit close to the body.
- Confirm the retailer’s terms before ordering. Review the retailer’s shipping, exchange, and return information, including any exclusions for final-sale or altered items. Our retailer shipping comparison can help organize this part of the purchase decision.
How to take key measurements
- Bust or chest: Measure around the fullest part, keeping the tape horizontal.
- Waist: Measure around the natural waist rather than where trousers happen to sit.
- Hip: Measure around the fullest part of the seat and hips.
- Inseam: Measure from the crotch to the ankle or to the point where you want the hem to finish.
- Sleeve: Follow the brand’s instructions; some measure from the shoulder, while others measure from the center back or neck.
- Foot: Trace or measure the longer foot while standing, then compare foot length with the shoe brand’s chart.
Tools and handoffs
A soft measuring tape, a note on your phone, and a saved link to the product page are usually enough. Keep a personal measurement record with the date, since measurements can change and different brands request different points. Record both imperial and metric values to reduce mistakes when shopping internationally.
Use a conversion chart for orientation, then hand off the decision to the brand’s own chart. If the brand provides a fit model’s height and worn size, treat that information as context rather than a direct prediction. Product reviews can reveal whether an item is commonly described as narrow, short, long, or oversized, but reviews may reflect individual preferences and should not replace measurements.
For a broader brand search, the clothing brand directory can help you compare brands by style, budget, and fit. Shoppers seeking specialized proportions may also find it more useful to start with guides to plus-size brands, tall clothing brands, or petite clothing brands rather than forcing a standard conversion.
Quality checks
- Check the chart’s audience: Confirm whether it is for women’s, men’s, children’s, unisex, or a specific product line.
- Check the measurement type: Do not compare a garment’s flat-lay width with a body circumference without doubling and interpreting the measurement correctly.
- Check the product description: Fabric stretch, lining, rise, cut, and intended fit can change the right choice.
- Check unusual labels: Numeric Asian, Italian, French, and denim sizing conventions may not map directly to a general US-to-EU chart.
- Check the largest constraint: For a fitted item, prioritize the measurement that cannot comfortably stretch or be altered.
- Check your source date: Brands can revise blocks, grading, size ranges, and charts between seasons.
If two sizes appear equally plausible, decide whether you prefer a closer or easier fit, then confirm whether the garment can be returned. For shoes, compare foot length and width when available; the same nominal size can feel different across lasts and materials.
When to revisit
Return to this guide whenever you shop from a new country, switch brands, buy a different garment category, or notice that a familiar size no longer fits as expected. Recheck the product page when a brand introduces a new collection, changes its sizing labels, or separates standard, petite, tall, plus, and extended ranges.
Before each international order, follow this short checklist: measure the relevant body points, verify the unit, read the item’s fit description, compare the brand chart, check retailer return terms, and save the chart or product details with your order. This five-minute handoff is more dependable than relying on a remembered label. Use conversion charts as a starting map, but let current measurements and the specific garment make the final decision.
